RESEARCH REPORTS FROM INSTITUTE FOR AGRO-MICROBIOLOGY, Vol. 3, 1999 p.35-44
Copyright © Institute for Agro-Microbiology. All Rights Reserved.

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GRANT REPORT

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3.Microbiological Characteristics of Soils Suppressive to Soil

-Borne Plant Pathogens -Microbial Community Structure and Diversity as Evaluated from Soil DNA and Functions-

Koki Toyota(Graduate School of BioAgricultural Sciences, Nagoya University)

To elucidate the microbial community structure responsible for the suppression of soils suppressive to Fusarium-wilt of radish, a variety of microbiological and chemical tests were made : some physicochemical properties, the numbers of total and culturable bacteria, 16S rDNA PCR-RFLP and %G+C profile of soil DNA, substrate utilization patterns using Biolog plates etc. Some methods clearly discriminated the microbial community structure of suppressive soils from that of conducive soils, others did not. Further studies are required to identify the microbial community characteristic to disease suppressive soils.

キーワード／Keywords
微生物多様性／microbial diversity、群集構造／community structure、Biolog／Biolog、抑止土壌／suppressive soil、16S rDNA／16S rDNA、 土壌DNAのG+Cプロファイル／%G+C base compostion